CN104984972A - Fume cupboard for laboratory - Google Patents
Fume cupboard for laboratory Download PDFInfo
- Publication number
- CN104984972A CN104984972A CN201510377729.5A CN201510377729A CN104984972A CN 104984972 A CN104984972 A CN 104984972A CN 201510377729 A CN201510377729 A CN 201510377729A CN 104984972 A CN104984972 A CN 104984972A
- Authority
- CN
- China
- Prior art keywords
- control device
- cabinet
- cabinet door
- air
- blower fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
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- Ventilation (AREA)
Abstract
The invention provides a fume cupboard for a laboratory. The fume cupboard comprises a cupboard body, a cupboard door and a control mechanism. A fan, a filter net, a flow distribution pipe, a first air guide pipe and a second air guide pipe are installed in the cupboard body. An operation room, an air inlet channel and a filter cavity are formed in the cupboard body. The cupboard door is provided with a first observation window. The bottom of the cupboard door is provided with a first air outlet channel, and the top of the cupboard body is provided with a second air outlet channel. An air outlet of the flow distribution pipe is communicated with the first air outlet channel through the first air guide pipe and communicated with the second air outlet channel through the second air guide pipe. A flow distribution valve is installed in the flow distribution pipe in a rotatable mode. The control mechanism comprises a control device, an infrared sensing device and a driving device. The driving device is in driving connection with the cupboard door. The control device is in communication connection with the infrared sensing device, the driving device and the fan. According to the fume cupboard for the laboratory, harmful gas can be effectively prevented from being inhaled by the human body, experimental operation is convenient, operation objects are almost not affected by the wind speed in the experiment process, and meanwhile energy can be saved.
Description
Technical field
The present invention relates to laboratory equipment, be specifically related to a kind of ventilation hoods for laboratories.
Background technology
Vent cabinet is a kind of intermittent local ventilation conventional in laboratory, and pernicious gas can be discharged workplace by vent cabinet completely, in time, can prevent operator from sucking gas that is poisonous, that be harmful to, have peculiar smell, play a very good protection to operator.Vent cabinet is provided with district usually, and operating personnel test in workspace, and pernicious gas is discharged by the blower fan on vent cabinet top.Existing vent cabinet arranges exhaust outlet at cabinet top, at top, blower fan is installed, because exhaust outlet is comparatively large from workspace distance, to pump pernicious gas completely, then the wind speed of blower fan is larger, workspace wind speed can be made to exceed standard, in addition, because gas molecule sharply moves up and down, turbulent flow can be formed, cause the wind speed of workspace uneven, pernicious gas is absorbed not exclusively, and probably impacts experimental result due to wind speed.
China Patent Publication No. is the patent of CN103624051A, with the space on work top for workspace, up-narrow and down-wide conical flow guiding pipe is installed above work top, it is uneven that conical flow guiding pipe coordinates blower fan to efficiently solve above-mentioned workspace wind speed, the problem that wind speed is large, but be still difficult in operating process avoid pernicious gas to be sucked by human body, even if comparatively evenly also still there is the possibility affecting experimental result in the air velocity of workspace, due to inlet scoop distance behaviour work top close together, operated by personnel is inconvenient, leave rear fan staff also will be held open, although avoid pernicious gas to enter air, can energy waste but cause.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of ventilation hoods for laboratories, it can effectively avoid pernicious gas to be sucked by human body, convenient experimental operation, in experimentation, operate article hardly by air speed influence, and can realize energy-conservation.
A kind of ventilation hoods for laboratories that the present invention proposes, comprises cabinet, cabinet door and controlling organization;
Blower fan, screen pack, isocon, the first guide duct and the second guide duct are installed in cabinet; Be provided with operating room, air intake passage and filter chamber in cabinet, cabinet door is removable to be arranged on cabinet and to be positioned at the side of operating room, and cabinet door moves adjustable operating room and external contact area, cabinet door is provided with the first observation window; Air intake passage is positioned near cabinet door side bottom operating room, and air intake passage is communicated with air inlet, fan outlet pipeline connection filter chamber, and screen pack and isocon are arranged in filter chamber, screen pack isolation isocon air inlet and fan outlet; Be provided with the first air-out passage bottom cabinet door, cabinet top is provided with the second air-out passage, and isocon air outlet is communicated with the first air-out passage by the first guide duct, and isocon air outlet is communicated with the second air-out passage by the second guide duct; Rotatably flow divider is installed in isocon, flow divider is arranged on isocon air outlet side and between the first guide duct air inlet and the second guide duct air inlet, during fan starting, flow divider has rotated the adjustable unit interval and has entered the air mass flow of the first guide duct and the air mass flow of the second guide duct;
Controlling organization comprises control device, infrared induction device and drive unit, and drive unit drives connecting cabinet door, and drive unit can drive cabinet door to move on cabinet; Control device and infrared induction device, drive unit and blower fan communicate to connect, and control device is preset with distance value, very first time value and area value, and control device obtains the distance between people and cabinet door by infrared induction device; The distance got in default very first time value between people and cabinet door when control device is all less than predeterminable range value, control device controls fan starting and accessory drive work, operating room is made to be preset area value with extraneous contact area, the distance got in default very first time value between people and cabinet door when control device is all greater than predeterminable range value, control device controls blower fan and cuts out and accessory drive work, makes operating room be zero with extraneous contact area.
Preferably, cabinet is provided with multiple second observation window, the second observation window is positioned at operating room and is different from the sidewall of cabinet door side, facilitates operational circumstances in other personal observations's operating room and for providing sufficient light source in operating room.
Preferably, the first observation window and the second observation window are implosion guard, if occur when operating, danger ensures the outer personal security of operating room as much as possible.
Preferably, in operating room, tap is installed, facilitates operated by personnel,
Preferably, be provided with waste-filling pool in operating room, be provided with the water guide pipeline being communicated with waste-filling pool in cabinet, water guide pipeline comprises S type trap, avoids operation indoor harmful gas to be entered in Laboratory Air by water guide pipeline while being discharged by sewage.
Preferably, cabinet is provided with material storage room, facilitates staff's putting on article.
Preferably, cabinet is provided with blower fan X button, control device and blower fan X button communicate to connect, control device is preset with the second time value, when control device receives the information of blower fan X button, control device keeps blower fan to be in closed condition in the second Preset Time, when carrying out the experiment that some can not have an impact to human body, avoids blower fan work to cause energy waste.
Preferably, cabinet is provided with cabinet door X button, control device cabinet door X button communicates to connect, control device is preset with the second time value, when control device receives the information of cabinet door X button, control device is accessory drive work in the second preset time value, makes cabinet door keep closed condition, when observing the article in operating room around cabinet staff, avoid drive unit work to cause energy waste and cause pernicious gas to have the possibility of spilling.
Mechanism of the present invention is simple, easy to operate, control device obtains the distance preset in very first time value between people and cabinet door by infrared induction device, control device is according to the relation between the distance in the Distance Judgment very first time value in the very first time value got between people and cabinet door between people and cabinet door and predeterminable range, and according to control blower fan and drive unit work, avoid staff namely to bring into operation through this ventilation hoods for laboratories blower fan and drive unit, and want that carrying out laboratory there will not be cabinet door to keep the situation of closed condition staff, first air-out passage coordinates air intake passage, realize pernicious gas and all enter into air intake passage, discharge from the first air-out passage after filtration, avoid being sucked by staff, by the wind speed regulating flow divider effectively can adjust air port, can according to different experiment flexible modulation, move to when making operating room be zero with extraneous contact area and close blower fan in cabinet face, the safety of staff can be ensured while energy-conservation.
Accompanying drawing explanation
Fig. 1 is the main apparent direction structural representation of a kind of ventilation hoods for laboratories that the present invention proposes;
Fig. 2 is the left apparent direction sectional view of a kind of ventilation hoods for laboratories that the present invention proposes.
Detailed description of the invention
Shown in seeing figures.1.and.2, a kind of ventilation hoods for laboratories that the present invention proposes, comprises cabinet 1, cabinet door 2 and controlling organization 3;
Blower fan 4, screen pack 5, isocon 6, first guide duct 7 and the second guide duct 8 are installed in cabinet 1; Be provided with operating room 11, air intake passage 12 and filter chamber 13 in cabinet 1, cabinet door 2 is removable to be arranged on cabinet 1 and to be positioned at the side of operating room 11, and cabinet door 2 moves adjustable operating room 11 and external contact area, cabinet door 2 is provided with the first observation window 21; Air intake passage 12 is positioned at bottom operating room 11 near cabinet door 2 side, air intake passage 12 is communicated with blower fan 4 air inlet, blower fan 4 air outlet pipeline connection filter chamber 13, screen pack 5 and isocon 6 are arranged in filter chamber 13, and screen pack 5 isolates isocon 6 air inlet and blower fan 4 air outlet; Be provided with the first air-out passage 22 bottom cabinet door 2, cabinet 1 top is provided with the second air-out passage 14, and isocon 6 air outlet is communicated with the first air-out passage 22 by the first guide duct 7, and isocon 6 air outlet is communicated with the second air-out passage 14 by the second guide duct 8; In isocon 6, flow divider 61 is rotatably installed, flow divider 61 is arranged on isocon 6 air outlet side and between the first guide duct 7 air inlet and the second guide duct 8 air inlet, when blower fan 4 starts, flow divider 61 has rotated the adjustable unit interval air mass flow of air mass flow and the second guide duct 8 entering the first guide duct 7;
Controlling organization 3 comprises control device 31, infrared induction device 32 and drive unit 33, and drive unit 33 drives connecting cabinet door 2, and drive unit 33 can drive cabinet door 2 to move on cabinet; Control device 31 and infrared induction device 32, drive unit 33 and blower fan 4 communicate to connect, and control device 31 is preset with distance value, very first time value, area value and the second time value.
In present embodiment, cabinet 1 is provided with multiple second observation window 15, second observation window 15 and is positioned at operating room 11 and is different from the sidewall of cabinet door 2 side, the first observation window 21 and the second observation window 15 are implosion guard.
In present embodiment, be provided with tap 111 in operating room 11, be provided with waste-filling pool 112 in operating room 11, be provided with the water guide pipeline 16 being communicated with waste-filling pool 112 in cabinet 1, water guide pipeline 16 comprises S type trap.
In present embodiment, cabinet 1 is provided with material storage room 17.
In present embodiment, cabinet 1 is provided with blower fan X button 18 and cabinet door X button 19, control device 31 communicates to connect with blower fan X button 18 and cabinet door X button 19.
When the present invention uses, control device 31 obtains the distance between people and cabinet door 2 by infrared induction device 32; The distance got in default very first time value between people and cabinet door 2 when control device 31 is all less than predeterminable range value, control device 31 controls fan starting and accessory drive 33 works, operating room 11 is made to be preset area value with extraneous contact area, the distance got in default very first time value between people and cabinet door 2 when control device 31 is all greater than predeterminable range value, control device 31 controls blower fan 4 cut out and accessory drive 33 works, and makes operating room 11 be zero with extraneous contact area.
When control device 31 receives the information of blower fan X button 18, control device 31 keeps blower fan 4 to be in closed condition in the second Preset Time, when control device 31 receives the information of cabinet door X button 19, control device 31 accessory drive 33 in the second preset time value works, and makes cabinet door keep closed condition.
The above; be only the present invention's preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (8)
1. a ventilation hoods for laboratories, is characterized in that: comprise cabinet (1), cabinet door (2) and controlling organization (3);
Blower fan (4), screen pack (5), isocon (6), the first guide duct (7) and the second guide duct (8) are installed in cabinet (1); Operating room (11), air intake passage (12) and filter chamber (13) is provided with in cabinet (1), the removable cabinet (1) that is arranged on of cabinet door (2) is gone up and is positioned at the side of operating room (11), the mobile adjustable operating room (11) of cabinet door (2) and external contact area, cabinet door (2) is provided with the first observation window (21); Air intake passage (12) is positioned at operating room (11) bottom near cabinet door (2) side, air intake passage (12) is communicated with blower fan (4) air inlet, blower fan (4) air outlet pipeline connection filter chamber (13), screen pack (5) and isocon (6) are arranged in filter chamber (13), screen pack (5) isolation isocon (6) air inlet and blower fan (4) air outlet; Cabinet door (2) bottom is provided with the first air-out passage (22), cabinet (1) top is provided with the second air-out passage (14), isocon (6) air outlet is communicated with the first air-out passage (22) by the first guide duct (7), and isocon (6) air outlet is communicated with the second air-out passage (14) by the second guide duct (8); Flow divider (61) is rotatably installed in isocon (6), flow divider (61) is arranged on isocon (6) air outlet side and is positioned between the first guide duct (7) air inlet and the second guide duct (8) air inlet, when blower fan (4) starts, flow divider (61) has rotated the adjustable unit interval air mass flow of air mass flow and the second guide duct (8) entering the first guide duct (7);
Controlling organization (3) comprises control device (31), infrared induction device (32) and drive unit (33), drive unit (33) drives connecting cabinet door (2), and drive unit (33) can drive cabinet door (2) to move on cabinet, control device (31) and infrared induction device (32), drive unit (33) and blower fan (4) communicate to connect, control device (31) is preset with distance value, very first time value and area value, and control device (31) obtains the distance between people and cabinet door (2) by infrared induction device (32), the distance got in default very first time value between people and cabinet door (2) when control device (31) is all less than predeterminable range value, control device (31) controls fan starting and accessory drive (33) work, operating room (11) is made to be preset area value with extraneous contact area, the distance got in default very first time value between people and cabinet door (2) when control device (31) is all greater than predeterminable range value, control device (31) controls blower fan (4) and cuts out and accessory drive (33) work, operating room (11) is made to be zero with extraneous contact area.
2. ventilation hoods for laboratories according to claim 1, it is characterized in that: cabinet (1) is provided with multiple second observation window (15), the second observation window (15) is positioned at operating room (11) and is different from the sidewall of cabinet door (2) side.
3. ventilation hoods for laboratories according to claim 2, is characterized in that: the first observation window (21) and the second observation window (15) are implosion guard.
4. ventilation hoods for laboratories according to claim 1, is characterized in that: be provided with tap (111) in operating room (11).
5. ventilation hoods for laboratories according to claim 4, it is characterized in that: in operating room (11), be provided with waste-filling pool (112), be provided with the water guide pipeline (16) being communicated with waste-filling pool (112) in cabinet (1), water guide pipeline (16) comprises S type trap.
6. ventilation hoods for laboratories according to claim 1, is characterized in that: cabinet (1) is provided with material storage room (17).
7. the ventilation hoods for laboratories according to claim 1-6 any one, it is characterized in that: cabinet (1) is provided with blower fan X button (18), control device (31) and blower fan X button (18) communicate to connect, control device (31) is preset with the second time value, when control device (31) receives the information of blower fan X button (18), control device (31) keeps blower fan (4) to be in closed condition in the second Preset Time.
8. the ventilation hoods for laboratories according to claim 1-6 any one, it is characterized in that: cabinet (1) is provided with cabinet door X button (19), control device (31) cabinet door X button (19) communicates to connect, control device (31) is preset with the second time value, when control device (31) receives the information of cabinet door X button (19), control device (31) is accessory drive (33) work in the second preset time value, makes cabinet door keep closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377729.5A CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510377729.5A CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104984972A true CN104984972A (en) | 2015-10-21 |
| CN104984972B CN104984972B (en) | 2017-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510377729.5A Active CN104984972B (en) | 2015-06-29 | 2015-06-29 | A kind of ventilation hoods for laboratories |
Country Status (1)
| Country | Link |
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| CN (1) | CN104984972B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106924844A (en) * | 2017-03-12 | 2017-07-07 | 龙文凯 | The device of magnetic therapy rhinitis |
| CN107008720A (en) * | 2017-05-25 | 2017-08-04 | 京华建设科技有限公司 | A kind of biological medicine research experiment vent cabinet provided with purification wall |
| CN107321751A (en) * | 2017-08-24 | 2017-11-07 | 中国安全生产科学研究院 | An edition workbench is washed in a kind of open type blowing and drawing ventilation gas defence |
| CN110743887A (en) * | 2018-07-24 | 2020-02-04 | 上海捷纳机电科技有限公司 | Fume chamber with automatic lifting cabinet door |
| CN113102432A (en) * | 2021-04-13 | 2021-07-13 | 博兰特智慧实验室(江苏)有限公司 | Intelligent fume hood system and control method thereof |
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| CN2586530Y (en) * | 2002-11-25 | 2003-11-19 | 陆建国 | Draft cupboard for circulating using exhaust gas |
| CN101537376A (en) * | 2009-03-12 | 2009-09-23 | 李保标 | Laboratory ventilated cabinet |
| CN202361545U (en) * | 2011-12-04 | 2012-08-01 | 东华大学 | Frequency conversion and fixed frequency combined-type air conditioner and refrigerator all-in-one machine with human body infrared induction function |
| WO2013150684A1 (en) * | 2012-04-05 | 2013-10-10 | 株式会社 日立産機システム | Safety cabinet for keeping animal |
| CN203711454U (en) * | 2013-12-26 | 2014-07-16 | 上海冠戈实业有限公司 | Air-hose-free self-cleaning type ventilation cabinet |
| CN203972435U (en) * | 2014-03-06 | 2014-12-03 | 中石化上海工程有限公司 | A kind of air-replenishing type ventilating cabinet |
-
2015
- 2015-06-29 CN CN201510377729.5A patent/CN104984972B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2586530Y (en) * | 2002-11-25 | 2003-11-19 | 陆建国 | Draft cupboard for circulating using exhaust gas |
| CN101537376A (en) * | 2009-03-12 | 2009-09-23 | 李保标 | Laboratory ventilated cabinet |
| CN202361545U (en) * | 2011-12-04 | 2012-08-01 | 东华大学 | Frequency conversion and fixed frequency combined-type air conditioner and refrigerator all-in-one machine with human body infrared induction function |
| WO2013150684A1 (en) * | 2012-04-05 | 2013-10-10 | 株式会社 日立産機システム | Safety cabinet for keeping animal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106924844A (en) * | 2017-03-12 | 2017-07-07 | 龙文凯 | The device of magnetic therapy rhinitis |
| CN107008720A (en) * | 2017-05-25 | 2017-08-04 | 京华建设科技有限公司 | A kind of biological medicine research experiment vent cabinet provided with purification wall |
| CN107321751A (en) * | 2017-08-24 | 2017-11-07 | 中国安全生产科学研究院 | An edition workbench is washed in a kind of open type blowing and drawing ventilation gas defence |
| CN110743887A (en) * | 2018-07-24 | 2020-02-04 | 上海捷纳机电科技有限公司 | Fume chamber with automatic lifting cabinet door |
| CN113102432A (en) * | 2021-04-13 | 2021-07-13 | 博兰特智慧实验室(江苏)有限公司 | Intelligent fume hood system and control method thereof |
| CN113102432B (en) * | 2021-04-13 | 2021-12-14 | 博兰特智慧实验室(江苏)有限公司 | Intelligent fume hood system and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104984972B (en) | 2017-09-15 |
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